USN-8680-1: FFmpeg vulnerabilities

unknownCVE-2026-70628 CVE-2026-70632

Adrian Junge discovered that FFmpeg incorrectly handled certain subtitle data. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-70628) Adrian Junge discovered that FFmpeg incorrectly handled certain video files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-70632)

CSIRTS triage

vendor: FFmpeg product: FFmpeg Remote code execution Denial of service

What: FFmpeg incorrectly handles certain subtitle data and video files, allowing potential arbitrary code execution or denial of service.
Who is affected: Systems or applications using affected versions of FFmpeg to process untrusted video or subtitle files; Ubuntu 22.04 LTS and 24.04 LTS specifically mentioned for one CVE.
Urgency: Remote code execution via media processing warrants urgent patching as exploitation can occur through common content sources.
Action: Update FFmpeg to a patched version through the Ubuntu security repository or upstream FFmpeg releases.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Ubuntu Security Notices (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-08-25
Exploitation: Not in CISA KEV at last sync

Original advisory: https://ubuntu.com/security/notices/USN-8680-1

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-706280.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-706320.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-70628	coverage & exploitation status	NVD · CVE.org
CVE-2026-70632	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.